do_action ( ‘wp_update_nav_menu’, int $menu_id , array $menu_data )

User Contributed Notes

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   Nitish Caila 2 years ago

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   If you are using 2 argumens for this action, in the callbacc function second argument needs a default empty array. If the second argument does not have a default array then it will throw the fatal error.

   function wpdocs_update_menu_stuff_after_update( $menu_id, $menu_data = array() ) {
   	//add menu stuff
   }
   add_action( 'wp_update_nav_menu', 'wpdocs_update_menu_stuff_after_update', 10, 2 );